Chair-seat.



No. 805,204. PATENTED NOV. 21, 1905. J. JACKSON & C. MUNSON.

CHAIR SEAT.

APPLICATION FILED AUG. 27, 1904.

v UNITED. STATES,

PATENT OFFICE.

Specification of Letters Patent.

Patented Nov. 21, 1905.

Application filed August 27, 1904. Serial No. 222,411.

To all whom it may concern.-

'manner and without the employment of glue or other adhesive or of separate fastening devices to secure a chair-seat cover to its base or back, and to further provide openings for the passage of fastening devices for attaching the seat to the chair-frame.

The invention further aims to eliminate the objectionable features attending the employment of the wooden backings heretofore employed, such objectionable features being cracking, splintering, and the consequent danger of puncturing the seat-cover.

The invention aims to provide a metallic backing for chair-seats with an integral nonpenetrating clasping cover-attaching means,

and to further provide the backing with openings to permit of the passage of fastening devices to secure the chair-seat to the chairseat frame.

The invention further aims to provide a metallic backing with round edges, thereby preventing the splitting or cutting of the seat-cover when drawing the same taut and clamping it to the backing.

The invention further comprises a metallic backing provided with integral non-penetrating clasping lugs or holders, under which the edge of the cover is clasped and by which the cover is securely attached to the metallic backing, the lugs or holders being struck from the backing and forming an integral part thereof.

The invention further aims to provide a chair-seat which shall be simple in construction, strong, durable, efficient in its use, and comparatively inexpensive to manufacture.

With the foregoing and other objects in view the invention consists of the novel combination and arrangement of parts hereinafter more specifically described, illustrated in the accompanying drawings, and particularly pointed out in the claims hereunto appended.

In describing the invention in detail reference is had to the accompanying drawings, forming a part of this specification, and wherein like reference characters denote corresponding parts throughout the several Views, and in which Figure 1 is a perspective view of the metallic backing. Fig. 2 is an inverted plan of the chair-seat. Fig. 3 is a sectional view eX- hibiting the chair-seat positioned upon the chair-seat frame, and Fig. 4 is a longitudinal sectional view showing a modified form of backing.

While the chair-seat is herein shown as approximately trapezoidal in contour, it is to be understood that the invention is not to be limited to this particular configuration, as any shape suitable for the purpose maybe adapted as may be found necessary or desirable. It is further to be understood that this chair-seat is adapted for use in factories or for repair purposes, in which latter case it will be furnished to the user ready to be fastened in position.

Referring to Figs. 1, 2, and 3 of the drawings, l designates the base or back of the seat, the same constructed of any suitable sheet metal, such as sheet-steel, and of any preferr'ed contour. Arranged adjacent to the perimeter of the backing and preferably in parallelism therewith is a series of attachinglugs 2, in this instance shown as rectangular in contour, although, if preferred, the lugs 2 may be of other shapes, by which the edge of the cover can be clasped and secured to the backing, but at the same time must not be of such construction as to penetrate the cover, said lugs 2, constituting the cover-attaching means and are formed by striking out of the metal by any suitable means for the purpose, and said lugs 2 are adapted to clamp the cover to the backing. The latter is also provided with a series of openings 3, which are arranged in parallelism with the perimeter of the backing and at a position intermediate the lugs 2 and the perimeter. These openings 3 are provided to permit of the passage of seatattaching devices 4 therethrough. Such devices 4 may be ordinary headed tacks, as shown, or any other suitable securing means. The backing 1 has its edges folded inwardly upon itself, as at 5, so as to form a rounded or a smoothly-thickened edge to protect the covering from being out, which would be the case if the backing 1 had a sharp edge, the sharp edge being prevented owing to the bending or folding of the backing in the manner as set forth. ,It will be evident that if the backing 1 has a sharp edge it will split or cut the covering when it is drawn or ICC stretched over said backing 1, and it will also be evident that the rounded or smooth edge affords protection against wearing when the seat is in use. It will be stated that the openings 3 extend through said bent or folded portion of the backing, as well as that portion of the backing which lies underneath said bent or folded part. The attaching-lugs 2 are not struck out of the bent or folded portion of the backing, but from that part of the backing which lies below said bent or folded portion. The attaching-lugs when not in their clamping positions project away from the perimeter of the backing 1 and when in their clamping positions are pressed toward the openings 6, formed when the said lugs 2 are struck from the backing.

The reference character 7 denotes the cover, which surrounds any ordinary filling 8, placed upon the upper face of the backing 1, and the edges of the cover fold over the rounded edges of the backing 1 and over and under the attaching-lugs 9.. The attaching-lugs are then pressed closely against the backing, which op eration securely attaches the cover in position without the clasping-lugs penetrating the cover. Suitable openings 8 are provided in the cover and which are arranged in alinement with the opening 3 in the backing, and through the said openings3 and 8' extend the attaching devices 5, which are adapted to engage in the chair-seat frame 6, thereby attaching the chair-seat in position.

In the modified form of construction shown in Fig. 4: the reference character 9 denotes the metallic backing, and which has arranged adjacent t0 the perimeter thereof and preferably in parallelism therewith a series of non-penetrating clasping-lugs 10, as shown,rectangular in contour, although, if preferred, any other shape of clasping-lugs can be employed under which the edge of the cover can be clasped. The attachinglugs 10 in the construction shown in Fig. 4 when struck out extend toward the perimeter of the backing and when in their clamping positions are bent inwardly and upon the underneath face of the backing. The seat-cover is passed over the attachinglugs 10 before they are bent to their clamping position. By such an arrangement it is evident that the seat-cover is securely clamped to the backing without the lugs penetrating said cover. The backing 9, as shown in Fig. 4, is provided with suitable openings for the holdfast devices, the cover being also provided with such openings. The backing as shown in Fig. 4: is not provided with the bent portion to form the rounded edge, but it is evident that said bent portion can be made and utilized for the same purpose as that referred to in connection with Figs. 1, 2, and 3.

By the employment of a sheet-metal backing provided with the non-penetrating clasping-lugs, such as described, a strong, light,

will be practical, indestructible, and will be free from the objectionable features of an ordinary wooden backing, which is liable to crack and splinter, with attendant danger of puncturing the cover. Furthermore, by clamping the cover to the backing in the manner as set forth there is no danger of the cover splitting, which would be the same if the attaching-lugs penetrated the covering when securing it in position. Furthermore, the attaching-lugs operating in the manner as set forth enables the ready removal of the cover, if it is desirable to replace the old one.

It is thought the many advantages of a chairseat constructed, in accordance with the foregoing description, taken in connection with the accompanying drawings, can be thoroughly understood, and it will furthermore be evident that changes, variations, and modilications can be resorted to without departing from the spirit of the invention or sacrificing any of its advantages, and we therefore do not wish to restrict ourselves to the details of construction hereinbefore described and as shown inthe accompanying drawings, but reserve the right to make such changes, variations, and modifications as come properly within the scope of the protection prayed.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. A chair-seat involving a sheet-metal backing member provided with openings to permit of the passage of holdfast devices and further provided with a series of independent and clasping lugs or holders struck therefrom for clamping a cover to said backing, combined with a cover adapted to surround said backing and folded over and under such lugs and adapted to be clamped to said backing by compressing said lugs toward the lower face of the backing.

2. A chair-seatinvolvingasheet-metal backing provided with independent non-penetrating clasping lugs or holders struck therefrom, forming thereby openings in the backing, combined with a cover adapted to in'close the upper face of said backing and extend over and under said lugs, said cover adapted to be clamped in said openings by compressing said lugs toward the backing.

3. Achair-seatinvolving a sheet-metal backing having its edges folded and further provided with openings arranged in parallelism with the perimeter thereof through which is adapted to extend holdfast devices for securing the backing to the seat-frame, said backing further provided with a series of dependable and non-penetrating clasping lugs or holders adapted to clamp a cover to said backing.

4. A chair-seat involving a metallic backing provided throughout the margin of its lower face with separate and dependable nonand durable seat-support is provided, which i penetrating cover-clasping lugs or holders,

IZC

combined with a cover adapted to fold over and be clamped by said lugs to said backing without penetrating said cover.

5. A chair-seat involving a sheet-metal supporting-section provided throughout the margin of its lower face with separate and dependable non-penetrating clasping lugs or holders projecting away from the perimeter of said backing when in their attaching positions, said supporting-section further provided with openings arranged in parallelism with the perimeter thereof through which is adapted to extend holdfast devices for securing the backing to the seat-frame.

6. A chair-seat involving a sheet-metal supporting-section provided with separate and dependable non-penetrating clasping lugs or holders projecting away from the perimeter of said backing, said supporting-section further provided with openings arranged in parallelism with the perimeter thereof through which is adapted to extend holdfast devices for securing the backing to the seat-frame.

7 A chairseat involving a sheet-metal backing member provided with openings to permit of the passage of holdfast devices and further provided with a series of independent and dependable non-penetrating rectangular clasping-lugs struck therefrom for clamping a cover to said backing, combined with a cover adapted to surround said backing and folded over and under such lugs and adapted to be clamped to said backing by compressing said lugs toward the lower face of the backing.

8. A chair-seat involving a metal backing provided throughout the margin of its lower face with separate non-penetrating rectangular cover-claspinglugs, combined with a cover adapted to fold over and be clamped by said lugs to said backing without penetrating said cover.

In testimony whereof We have hereunto set our hands in presence of two subscribing witnesses.

JOHN JACKSON. CLAIR MUN SON Witnesses:

A. H. PADDooK, DANIEL HARING 

